World in the Balance
The Historic Quest for an Absolute System of Measurement
Every day we need reliable ways of measuring length, weight and time. For most of human history these were based on creatively improvised local standards, such as the ancient Chinese connection between length and musical pitch. This book, by the philosopher who writes a regular Physics World column, tells little-known stories behind the world’s diverse measures and shows how they were gradually consolidated into a universal system, and how scientists are creating the first absolute system based on physical constants.
A Brief Guide to the Great Equations
The Hunt for Cosmic Beauty in Numbers
From 1+1=2 and Pythagoras' theorem to the work of Einstein and Heisenberg, Crease tells the stories and personal struggles behind the creation of the most fundamental, powerful and influential equations. He also considers what each equation reveals about the cultural and historical background that produced it and the effects, often unforeseen by their originators, which these pithy distillations of knowledge have had on later generations.